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Item Information   Holdings       More by this author     Medved, Ben     Subjects     MSC NASTRAN (Computer file)     MSC PATRAN (Computer file)     Locomotives     Steel     Weight loss     Finite element method     Engineering design -- Data processing     Structural analysis (Engineering) -- Data processing     MSE Project.     Browse Catalog     by author:      Medved, Ben       by title:      Radiator hood struct...         MARC Display

Radiator hood structural optimization / by Ben Medved. by Medved, Ben Subjects MSC NASTRAN (Computer file)   MSC PATRAN (Computer file)   Locomotives   Steel   Weight loss   Finite element method   Engineering design -- Data processing   Structural analysis (Engineering) -- Data processing   MSE Project. Description:  89 leaves : ill. ; 29 cm. Contents:  Thesis advisor: Dr. Robert Rizza Committee members: Dr. Subha Kumpaty, Dr. Mohammed Mahinfalah Introduction -- Background -- Methods -- Results and discussion -- Conclusions and recommendations -- A: Background on FEA process and theories -- B: Sample calculations. The purpose of this project was to reduce the weight of a domestic freight locomotive's radiator hood, so that it could be fully assembled and loaded onto a truck for shipping without exceeding the crane capacity in the area where the structure was build. PATRAN/NASTRAN finite element analysis software was used to determine the best ways in which to reduce the weight while maintaining structural integrity. The results of the analysis were validated through sample calculations and by comparing the results to a previous analysis that was run for the original design by an outside supplier. In addition to removing material by varying the thickness and grades of steel used to make the hood structure, alternative materials like aluminum and composites were also reviewed to see if they should be incorporated in the design. Based on the results of the analysis, the weight of the structure could not be reduced enough to fully assemble the hood before lifting it onto the truck for shipping, but could be reduced enough to lift the structure onto the truck with only a few bolt on items that still needed to be attached. This was done by using higher grades of steel and by reducing the thickness of the steel in a number of areas in the structure. It was also determined that it was not cost effective or practical to change from steel to either aluminum or composites for the majority of the structure, but the potential to use composites in portions of the structure was suggested as a means to reduce labor costs.   Copy/Holding information Location Collection Call No. Status   Walter Schroeder Library Master's Theses AC805 .M42 2009 Available Add Copy to MyList Format: HTMLPlain textDelimited Subject:   Email to:

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